The CHEBY(x,x0,a0,…,an) function returns the value of an nth order Chebyshev polynomial of the first kind. You can define up to a 30th order polynomial.
Arguments
|
x |
The independent variable. You can enter a valid expression for the independent variable such as 2*TIME.
|
|
x0 |
The constant offset of the independent variable. |
|
a0,…,an |
A set of polynomial coefficients. |
Function Definition
CHEBY(x,x0,a0,…,an) =
a0 + Σj=1 … n aj*Tj(x-x0)
where
T1(x-x0) = x-x0
Tj(x-x0) = 2*(x-x0)*Tj-1(x-x0)*Tj-2(x-x0)